Journal
CATALYSTS
Volume 10, Issue 3, Pages -Publisher
MDPI
DOI: 10.3390/catal10030324
Keywords
water remediation; photoreduction; photooxidation; azo dye; flavin; iron oxide nanoparticles; charge transfer; reactive oxygen species; electron donor
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Funding
- EPSRC DTC Studentship [EP/N509620/1]
- EPSRC [1945802] Funding Source: UKRI
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In this work, a new photocatalytic system consisting of iron oxide nanoparticles (IONPs), coated with a catechol-flavin conjugate (DAFL), is synthesized and explored for use in water remediation. In order to test the efficiency of the catalyst, the photodegradation of amaranth (AMT), an azo dye water pollutant, was performed under aerobic and anaerobic conditions, using either ethylenediaminetetraacetic acid (EDTA) or 2-(N-morpholino)ethanesulfonic acid (MES) as electron donors. Depending on the conditions, either dye photoreduction or photooxidation were observed, indicating that flavin-coated iron-oxide nanoparticles can be used as a versatile enzyme-inspired photocatalysts.
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